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Cardiac Output
Monitor
Introduction
Cardiac Output Monitor reveals pump performance
of the heart. The board provides Cardiac Output signal in
analog form which can be displayed on standard Oscilloscope.
It will form front end module to Patient Monitoring systems
useful for the monitoring of stroke volume and cardiac output
in patients. It is based on the principle of electrical impedance
plethysmography and is non-invasive in nature.
This method has been reported to be accurate
in majority of subjects except those with intracardiac shunts
or valvular regurgitation and at present is the only non-invasive
method for continuous cardiac output monitoring.
Specifications
| Principle
|
: |
Electrical impedance
measurement by constant current method. |
| Mode of operation |
: |
Calibration/Patient |
| Configuration |
: |
Tetrapolar |
| Sensor |
: |
Spot electrodes |
| Carrier current |
: |
Sinusoidal at 48 KHz
frequency and 4 mA amplitude |
| Measurement range |
: |
Impedance 5 to 75 W |
| Rate of change of impedance
|
: |
-1.5 to +3.5 W /sec |
| Stroke volume |
: |
10 ml to 150 ml |
| Cardiac output |
: |
0.5 litres to 20 litres
|
| Patient isolation |
: |
3000 Volts |
| Power input |
: |
230 VAC +/- 10%, 50 Hz,
100 W |
| Output |
: |
On Oscilloscope
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Applications
This can be used for OEM application
for continuous monitoring of stroke volume and cardiac output
in critically ill patients in Intensive Care Units and Intensive
Cardiac Care Units, with hardware addition.
Contact
for more information
Head,
Technology Transfer & Collaboration Division,
Bhabha Atomic Research Centre,
Trombay, Mumbai - 400 085
Tel : 091-022-25505337/25593897
Fax : 091-022-25505151
E-mail : headttcd@barc.gov.in
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